enough, but it would be silly not to
look at options to upgrade them, so
let’s do that also. Nickel Metal Hydride
cells are something I know very well,
they are cheap, and I already have a
bank of chargers for them. Is it
possible to avoid the temptation of
Lithium Polymer batteries?
These are easily available, in sizes
that are more than capable of
supplying my needs, and proven in
robot combat to only ever blow up
once. I will need several new chargers
to use them, and I must do a lot of
research into keeping them alive inside
my robot if I want to make use of the
cost-effective method of learning from
the mistakes made by my peers.
I do not need to worry about
speed controllers thankfully, as I
Given the large number of
amazing robots kicking bot
throughout 2015, if Axebot is to enter
the show, it must have a complete
identity change. It must be internally
and externally fresh and new, and
deserving of a place in Robot Wars
If Axebot is to be my entry into a
show that I have desperately missed
for 10 long years, it must be good.
No, it must be great! It must be a
totally unrecognizable robot with a
memorable design; it must stand out;
it must be worthy or it will not be
selected for the show. Do I have time
to do this?
Robot 4 is in trouble. One of the
fan favorites from the shows when
they were at their peak, I have had
almost 100 messages in the last 72
hours asking me to enter this robot
(who we shall call Flipper). Like Rocky
Balboa in his last movie, it is mostly
worn out, but given a chance should
be able to make a popular comeback.
(Oh, what I would give for a 1980's
montage right now to speed up the
Externally, the robot is battered,
bent, dented, and not too pretty, but
it is perfectly functional and can be
straightened and repaired. The
batteries are old heavy lead based
items, and the thought of dumping
them in the bin makes my heart sing.
As with Axebot, batteries are a
world of pain if you let them be, so
my choice of technology depends on
funds available and how much bravery
I can muster. Whatever the case, I save
a lot of weight by dumping the lead
acid batteries, and can use that to up-armor. I will really really need to do
that if Flipper is to survive the
enormous kinetic energy weapons that
will no doubt appear on Robot Wars.
The pneumatics are both a
nightmare and a dream to have to
deal with. As with all custom-made
pneumatics, the new rules have strict
conditions and to meet these will be a
challenge for such a large high
pressure system. Famous for his
pneumatics, Flipper is still very
competitive in this respect, but I have
to say I have introduced upgrades that
28 SERVO 03.2016
These motors and gearboxes are ruined, so new solutions will need to be found.
Lithium batteries will force me to buy all new chargers.
Always a weak link. I have no more spares for
this broken gear.